Touch panel

Abstract

A touch panel includes an electrode layer made of a conductive mesh, and provided with a first electrode, a second electrode, and a dummy electrode. The first electrode has a first facing part, which is formed in a first region. The second electrode has a second facing part, which is formed in a second region. The first and second facing parts face each other and are separated from each other in a predetermined direction. The dummy electrode has an interposition part located at least partially between the first and second facing parts. The interposition part is formed in a dummy region, which has a first end portion region and a second end portion region as both end regions in a predetermined direction. The first region and the first end portion region overlap each other, and the second region and the second end portion region overlap each other.

1 . A touch panel comprising a base member and an electrode layer formed on the base member, wherein:
 the electrode layer is made of a conductive mesh and comprises a first electrode, a second electrode and a dummy electrode;   the first electrode has a first facing portion;   the first facing portion is formed in a first area;   the second electrode has a second facing portion;   the second facing portion is formed in a second area;   the first facing portion and the second facing portion are apart from each other and face each other in a predetermined direction;   the dummy electrode has an intervening portion located between the first facing portion and the second facing portion at least in part;   the intervening portion is formed in a dummy area;   the dummy area has a first end area and a second end area as both end areas thereof in the predetermined direction;   the first area and the first end area overlap with each other; and   the second area and the second end area overlap with each other.   
     
     
         2 . The touch panel as recited in  claim 1 , wherein:
 the first area is formed by imaginarily linking outermost ends of a part of the conductive mesh that forms the first facing portion;   the second area is formed by imaginarily linking outermost ends of a part of the conductive mesh that forms the second facing portion; and   the dummy area is formed by imaginarily linking outermost ends of a part of the conductive mesh that forms the intervening portion.   
     
     
         3 . The touch panel as recited in  claim 2 , wherein:
 the conductive mesh has a pattern in which specific elements are repeatedly arranged in a perpendicular direction perpendicular to the predetermined direction;   the specific element has a predetermined size as a maximum size in the perpendicular direction;   the first area is formed by imaginarily linking the outermost ends of the part of the conductive mesh that forms the first facing portion at intervals of at least the predetermined size in the perpendicular direction;   the first area has an edge linearly extending along the perpendicular direction as an end edge in the predetermined direction;   the second area is formed by imaginarily linking the outermost ends of the area of the conductive mesh that forms the second facing portion at intervals of at least the predetermined size in the predetermined direction; and   the second area has an edge linearly extending along the perpendicular direction as an end edge in the predetermined direction.   
     
     
         4 . The touch panel as recited in  claim 3 ; wherein:
 the specific element has a diamond shape;   the intervening portion has a plurality of first specific lines parallel to one another in the first end area;   each of the first specific lines corresponds to one edge of the diamond shape of the specific element;   the first facing portion has a plurality of first end lines parallel to one another as an end portion in the predetermined direction;   each of the first end lines corresponds to one edge of the diamond shape of the specific element;   the first specific lines and the first end lines are alternately arranged in the perpendicular direction;   the intervening portion has a plurality of second specific lines parallel to one another in the second end area;   each of the second specific lines corresponds to one edge of the diamond shape of the specific element;   the second facing portion has a plurality of second end lines parallel to one another as an end portion in the predetermined direction;   each of the second end lines corresponds to one edge of the diamond shape of the specific element; and   the second specific lines and the second end lines are alternately arranged in the perpendicular direction.   
     
     
         5 . The touch panel as recited in  claim 4 , wherein:
 the first electrode has a first main portion extending along the predetermined direction and a plurality of the first facing portions extending from the first main portion along the perpendicular direction;   the second electrode has a second main portion extending in the predetermined direction and a plurality of the second facing portions extending from the second main portion; and   the first facing portions and the second facing portions are alternately arranged in the predetermined direction.